Spherical Hankel function of the second kind, order zero.
Loading LOADSUB ALL FROM "BESRS.HTS"
or LOADSUB FROM "MATHLIB.HTS"
Usage REAL X
COMPLEX C
C=FNS_h20(X)
Description
FNS_h20returns the value of the spherical Hankel function of the second kind and order zero ofx,h0(2)(x). The real component returned containsj0(x) and the imaginary component returned contains -y0(x).
Errors
FNS_h20causes an HTBasic error if its argument is not of type REAL. It also causes an error if the value ofxis near zero, since the imaginary component ofh0(2)(0) is -.